traction

Got a merc w202 C250 the other day and got the diff welded, I tried to do a burn out but wouldn't work, I looked around for stuff as to why but got nothing. I figured it was something to do with the traction but I can't find out how to turn it off due that no one has anything on c250 out there...

Any spec considered. Cheers.

I bought a full set of adjustable arms, front tension arms rear camber arms rear traction arms rear toe arms These have all played with before I fitted them to the car, now that it's time for the finishing touches I don't know what settings I require. I will be having 4-wheel alignment...